Lezyne Flow SL Water Bottle Cage - Right Side Entry, Composite, Black
The Lezyne Flow SL Water Bottle Cage is built for bikes where standard top-entry bottle cages become frustrating—small frames, full-suspension mountain bikes, compact gravel setups, and tight frame bags all create the same problem: there just isn’t enough room.
The right side entry design solves that by allowing easier bottle access from the side while keeping a secure hold over rough terrain. This makes it especially useful for gravel bikes, smaller road frames, and full-suspension MTB builds where clearance matters.
The Composite Matrix construction keeps weight low while maintaining enough strength for real trail and road use without becoming fragile like cheaper plastic cages.
Key Functional Details
- Right side entry bottle access design
- Composite Matrix lightweight construction
- Secure hold for rough roads and trail riding
- Strong top catch and lower tab retention system
- Works with multiple standard bottle shapes
- Low profile design for tight frame clearance
- Ovalized mounting holes for easier frame fitment
- Excellent for gravel, MTB, and small frame road bikes
Technical Specifications
| Brand | Lezyne |
| Model | Flow Side Load Cage SL |
| Access Style | Right Side Entry |
| Material | Composite Matrix |
| Bottle Type | Standard Water Bottles |
| Mount Type | Bolt-On |
| Color | Black |
| Weight | 48g |
Compatibility & Technical Notes
Good Fit: gravel bikes, mountain bikes, small road frames, full-suspension bikes, bikes with frame bags, and compact e-bike frame layouts.
Not A Fit: riders specifically needing left-side entry access or oversized bottle systems outside standard cycling bottle sizing.
Side-entry direction matters. This is the right side entry version, so frame access should be confirmed before ordering.
Service / Ownership Context
One of the most common frustrations on smaller bikes is fighting your bottle cage every ride. Side-load cages solve that immediately and are often one of the best small upgrades riders make.
This is especially useful on gravel bikes where frame bags, compact geometry, and large bottles make traditional top-load cages frustrating or unreliable.
Fit & Use Signals
Best for:
- Small frame gravel bikes
- Full-suspension MTB builds
- Compact road bike frames
- Frame bag bikepacking setups
- E-bikes with tighter front triangle space
Not ideal for:
- Riders needing left-side access
- Oversized insulated bottles
- Very large traditional top-entry frame clearance setups